SCPS121H
January 2005 – February 2020
PCF8575
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.2.1
Logic Diagram (Positive Logic)
8.2.2
Simplified Schematic Diagram of Each P-Port Input/Output
8.3
Feature Description
8.3.1
I2C Interface
8.3.2
Interface Definition
8.3.3
Address Reference
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Minimizing ICC When I/Os Control LEDs
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset
10.2
System Impact
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.2
Documentation Support
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|24
MPDS363A
RGE|24
MPQF124G
DW|24
MPDS174A
DB|24
MPDS509
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND024AD
Orderable Information
scps121h_oa
scps121h_pm
1
Features
I
2
C to Parallel-Port Expander
Open-Drain Interrupt Output
Low Standby-Current Consumption of 10 μA Max
Compatible With Most Microcontrollers
400-kHz Fast I
2
C Bus
Address by Three Hardware Address Pins for Use of up to Eight Devices
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Current Source to V
CC
for Actively Driving a High at the Output
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model
200-V Machine Model
1000-V Charged-Device Model